One of the parameters to determine the SRP is the Company Performance, explained in annex 7 of the Paris MoU text. Company performance takes account of the detention and deficiency history of all ships in a company’s fleet while that company was the ISM Company for the ship. Companies are ranked as having a very low, low, medium or high performance. The calculation is made daily on the basis of a running 36-month period. There is no lower limit for the number of inspections needed to qualify except a company with no inspections in the last 36 months will be given a “medium performance”.